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Rectangular ATX power supply unit with matte black finish and cooling fan visible

KHACHIMO

KHACHIMO S10-400P1A 400W Power Supply

SKU CH-DH9R-ME72K

ATX 400 W power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and resonant LLC plus DC-to-DC topology for quiet, efficient Modern Standby support

  • TypeATX
  • Modern Standby support for faster wake times
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode keeps system silent at low load
  • Resonant LLC with DC-to-DC delivers clean, stable power
  • ATX form factor fits standard desktop cases

KHACHIMO S10-400P1A 400W ATX Power Supply

This new ATX power supply delivers 400W of continuous power for desktop systems requiring reliable energy efficiency. It carries 80 PLUS Gold certification and supports Modern Standby for rapid wake-from-sleep performance. The unit uses Resonant LLC topology with DC-to-DC conversion to provide clean, consistent output. It is suited for builders assembling or upgrading standard ATX chassis.

Installation ease and common pitfalls

The PSU follows the standard ATX form factor, so it fits typical mounting points and cable routing channels. Zero RPM fan mode means the cooling fan stays off at low and medium loads, reducing noise during light use. Ensure all motherboard and peripheral connectors are fully seated; loose pins are the most frequent cause of boot failures. Verify the fan orientation matches your case airflow design before securing screws.

Pre-order compatibility checks

Confirm your chassis accepts a standard ATX power supply and offers enough internal depth for cable bends. Check that your motherboard requires a 24-pin main connector and the appropriate CPU power header. Ensure the total system power draw stays within the 400W rating, especially if adding discrete graphics or multiple drives. The unit is new and includes no legacy connectors beyond current ATX specifications.

Pontos fortes

  • Modern Standby support for faster wake times
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode keeps system silent at low load
  • Resonant LLC with DC-to-DC delivers clean, stable power
  • ATX form factor fits standard desktop cases

Especificações

TypeATX

Perguntas sobre este artigo

How do I confirm the 80 PLUS Gold efficiency is active after installing the S10-400P1A?

The PSU runs cooler and draws less power at the wall under typical loads; the Zero RPM fan stays off at low and medium loads, so silent operation is the immediate sign it is working as intended.

What cables come with the 400W unit and what must I source separately?

The box includes the ATX power supply itself; all modular cables for motherboard, GPU and drives must be purchased separately if not already owned.

Which of the listed model references — ASA5525-K9, 5515-X or 5512 — matches my chassis?

All three part numbers refer to the same 400W S10-400P1A unit; choose the one that appears on your existing label or chassis sticker.

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